1. /*

  2.  * The Apache Software License, Version 1.1

  3.  *

  4.  *

  5.  * Copyright (c) 2002 The Apache Software Foundation.  All rights

  6.  * reserved.

  7.  *

  8.  * Redistribution and use in source and binary forms, with or without

  9.  * modification, are permitted provided that the following conditions

  10.  * are met:

  11.  *

  12.  * 1. Redistributions of source code must retain the above copyright

  13.  *    notice, this list of conditions and the following disclaimer.

  14.  *

  15.  * 2. Redistributions in binary form must reproduce the above copyright

  16.  *    notice, this list of conditions and the following disclaimer in

  17.  *    the documentation and/or other materials provided with the

  18.  *    distribution.

  19.  *

  20.  * 3. The end-user documentation included with the redistribution,

  21.  *    if any, must include the following acknowledgment:

  22.  *       "This product includes software developed by the

  23.  *        Apache Software Foundation (http://www.apache.org/)."

  24.  *    Alternately, this acknowledgment may appear in the software itself,

  25.  *    if and wherever such third-party acknowledgments normally appear.

  26.  *

  27.  * 4. The names "Xerces" and "Apache Software Foundation" must

  28.  *    not be used to endorse or promote products derived from this

  29.  *    software without prior written permission. For written

  30.  *    permission, please contact apache@apache.org.

  31.  *

  32.  * 5. Products derived from this software may not be called "Apache",

  33.  *    nor may "Apache" appear in their name, without prior written

  34.  *    permission of the Apache Software Foundation.

  35.  *

  36.  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED

  37.  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

  38.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

  39.  * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR

  40.  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

  41.  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

  42.  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF

  43.  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

  44.  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,

  45.  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT

  46.  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

  47.  * SUCH DAMAGE.

  48.  * ====================================================================

  49.  *

  50.  * This software consists of voluntary contributions made by many

  51.  * individuals on behalf of the Apache Software Foundation and was

  52.  * originally based on software copyright (c) 1999, International

  53.  * Business Machines, Inc., http://www.apache.org.  For more

  54.  * information on the Apache Software Foundation, please see

  55.  * <http://www.apache.org/>.

  56.  */

  57. 

  58. package com.sun.org.apache.xerces.internal.util;

  59. 

  60. /**

  61.  * All internalized xml symbols. They can be compared using "==".

  62.  * 

  63.  * @author Sandy Gao, IBM

  64.  * @version $Id: XMLSymbols.java,v 1.2 2002/08/14 17:52:52 sandygao Exp $

  65.  */

  66. public class XMLSymbols {

  67.     

  68.     // public constructor.

  69.     public XMLSymbols(){}

  70.     

  71.     //==========================

  72.     // Commonly used strings

  73.     //==========================

  74.     

  75.     /**

  76.      * The empty string.

  77.      */

  78.     public final static String EMPTY_STRING = "".intern();

  79. 

  80.     //==========================

  81.     // Namespace prefixes/uris

  82.     //==========================

  83.     

  84.     /**

  85.      * The internalized "xml" prefix.

  86.      */

  87.     public final static String PREFIX_XML = "xml".intern();

  88. 

  89.     /**

  90.      * The internalized "xmlns" prefix.

  91.      */

  92.     public final static String PREFIX_XMLNS = "xmlns".intern();

  93. 

  94.     //==========================

  95.     // DTD symbols

  96.     //==========================

  97.     

  98.     /** Symbol: "ANY". */

  99.     public static final String fANYSymbol = "ANY".intern();

  100. 

  101.     /** Symbol: "CDATA". */

  102.     public static final String fCDATASymbol = "CDATA".intern();

  103. 

  104.     /** Symbol: "ID". */

  105.     public static final String fIDSymbol = "ID".intern();

  106. 

  107.     /** Symbol: "IDREF". */

  108.     public static final String fIDREFSymbol = "IDREF".intern();

  109. 

  110.     /** Symbol: "IDREFS". */

  111.     public static final String fIDREFSSymbol = "IDREFS".intern();

  112. 

  113.     /** Symbol: "ENTITY". */

  114.     public static final String fENTITYSymbol = "ENTITY".intern();

  115. 

  116.     /** Symbol: "ENTITIES". */

  117.     public static final String fENTITIESSymbol = "ENTITIES".intern();

  118. 

  119.     /** Symbol: "NMTOKEN". */

  120.     public static final String fNMTOKENSymbol = "NMTOKEN".intern();

  121. 

  122.     /** Symbol: "NMTOKENS". */

  123.     public static final String fNMTOKENSSymbol = "NMTOKENS".intern();

  124. 

  125.     /** Symbol: "NOTATION". */

  126.     public static final String fNOTATIONSymbol = "NOTATION".intern();

  127. 

  128.     /** Symbol: "ENUMERATION". */

  129.     public static final String fENUMERATIONSymbol = "ENUMERATION".intern();

  130. 

  131.     /** Symbol: "#IMPLIED. */

  132.     public static final String fIMPLIEDSymbol = "#IMPLIED".intern();

  133. 

  134.     /** Symbol: "#REQUIRED". */

  135.     public static final String fREQUIREDSymbol = "#REQUIRED".intern();

  136. 

  137.     /** Symbol: "#FIXED". */

  138.     public static final String fFIXEDSymbol = "#FIXED".intern();

  139.     

  140.     

  141. }